0 like 0 dislike

Please remember our 05-04 Lab Exercise 3: Write class shape with width and height

How to use Abstract class to solve the problem?

Write class shape with width and height following a constructor that gives value to them.

Then define two sub-classes triangle and rectangle.

Those sub-classes can calculate the area of the shape area().

Remember, Rectangle area = (width * height)

Triangle area = (width * height)/2

#include <iostream>
using namespace std;
// Base class
class Shape 
{
public:
   // Your code: pure virtual function providing interface framework.
   // constructor and setWidth(int w) and setHeight(int h) functions here
protected:
   int width;
   int height;
};
// Derived classes
class Rectangle: public Shape
{
public:
   // Your code:    int getArea()
};
class Triangle: public Shape
{
public:
   // Your code:    int getArea()
};
int main(void)
{
   Rectangle Rect;
   Triangle  Tri;
   int w,h;
   cin >>w>>h;
   Rect.setWidth(w);
   Rect.setHeight(h);
   cin >>w>>h;
   Tri.setWidth(w);
   Tri.setHeight(h);
   cout << Rect.getArea() << ";" << Tri.getArea() << endl; 
   return 0;
}

 

[Exercise] Coding (C) - asked in C++
Available when: Unlimited - Due to: Unlimited
| 35 views

17 Answers

0 like 0 dislike
Hidden content!
#include ** ** *

using * * * std;

// Base class

class Shape

{

public:
* *** ** **** *** Your code: pure virtual function *** ** ** * *
* * * **** * *** ** * ** and ** **** w) and * * ** h) * * * here
* * **** ** ***** w){width = w;}
***** ******** * **** * * = h;}
*** ** **
** * * * ** ** width;
** ** ** * * * * height;

};

// Derived classes

class ** * * public Shape

{

public:
***** * Your code: * * ***** ** ***
* *** * * ** ** * * ** * area;
** ** * * * ** * * = ** ** * *
* ** * **** ** ** area;
* *** ** *

};

class ** * public Shape

{

public:
* * *** * * ** * Your code: * *** * ** ** * * * *** *
* *** **** * * *** * * *
** ************ ****** * * area;
**** * *** * * ****** * = (width * * *
* * ***** * *** ** ** *** * * area;
*** *** * *** *

};

int * **

{
* * ** * ** * * * ** * Rect;
* * ** * *** *** * * ** **
***** *** * * * * *** w,h;
** * * *** * * ** * * * * * * **
** *** *** * ****
***** ** * * * * ******* **
* * ** * * *** ***** * * * * ** * * ***
* *** **** ** * ****** * ***
* *** ** ****** ********** ** *
* * * ** ** ** * **** * * **** * ** * ** ** *** ** *** *** ** * * * *** **** endl;
* * *** * * * * * 0;

}
answered by (-298 points)
0 like 0 dislike
Hidden content!
#include * * * *** *

using *** std;

// Base class

class Shape

{

public:
* ** * ** **** Your code: pure virtual function ** ** * * * *
* **** **** * * * * * and * * ** * w) and h) *** here
** ** * **** *** **** *** ** ** w){width = w;}
* *** * * * ***** ** * * **** = h;}
* *
**** ** ******* ** ** ** width;
* * ** * **** * height;

};

// Derived classes

class * *** public Shape

{

public:
** **** * ** Your code: ** ** ***** ** * * * * * *
** * * ** ** * * * area;
* * * *** **** ** = **** *
* ** * * **** * ** ***** * * *** area;
* ** * ** * * *

};

class * ** public Shape

{

public:
**** *** ********** * Your code: * ** **** * * *
* * * * * * ***** * ** * **
* * ** * ****** ** ** area;
******* ****** * *** * = (width * * *
* * *** * ** ** * * * area;
**** ** * * ** * *

};

int ** * *

{
* * ** ** * * * Rect;
***** * ******* *** *
* ********** ****** w,h;
**** *** * * *** ** ** * * * *
* * ** * ** ** * * ** * *
* * * * * * ** *** ** *
** * * * *** * *** * *** *** * *
* ** ** * *** * * **** ** **
** *** **** ** * * * * *
** ***** * * * * * * ***** ** ** ***** * ** ** ** ** ** ** **** * *** * endl;
* * **** * * ** 0;

}
answered by (-215 points)
0 like 0 dislike
Hidden content!
#include * *** * ***

using *** std;

// Base class

class Shape

{

public:
* ** * * * ** *** Your code: pure virtual function ** ** **** * **
* * *** ** * * * * * and **** * w) and * * * h) ** here
* * * * *** ** * * * w){width = w;}
***** * ** * * * * ** = h;}
***
**** *** *** * ** width;
* * * * * ** * height;

};

// Derived classes

class ** public Shape

{

public:
* ***** * ** * * Your code: *** * ** * ** * ** * ****
** *** ****** * ** * area;
* * * * * * ** * = ** * *
** * * ** * * * * ** ** area;
*** ** ** * ****

};

class ** * public Shape

{

public:
** * * ** * * Your code: ** *** * *** * ** * *** **
* ** ****** ***** *** * ***
** * * * **** ** **** area;
* ** *** * **** ******* * ** = (width * * * ** *
* * ************ * ** ** * area;
* * *** ** **** * * **

};

int ****

{
** ** **** * ** * Rect;
* * ** *** * ** * * **** ** ***
** ** * **** * * w,h;
** * **** * **** * *** * ** * *** ******* ****
* * ** ******* * * * ** **
* *** *** **** ***
** ******** ** * * ** * ** ** * * ** **
* ** ******** *** ** * * *
** **** ** **** ****** * **
*** *** * ***** * * * * * ******** *** * ** * ** * * * ****** * endl;
* * ***** * * *** 0;

}
answered by (237 points)
0 like 0 dislike
Hidden content!
#include * **** * **

using *** **** std;

// Base class

class Shape

{

public:
* ***** * Your code: pure virtual function ** * ** ** * ****
* * ** * * *** *** and * * w) and ** * * h) ** here
** * * * * ** * w){width = w;}
*** ** * * ***** * *** = h;}
* ** *
**** * **** *** * ** ** width;
** ******* ** height;

};

// Derived classes

class ** * * public Shape

{

public:
* * * ** ** * Your code: * *** * * **** * * ***
* * * ** * *** * * * * * *** area;
* ** * * ** * ** ** = * * ***
***** * * *** ** ** * area;
*** * ** *

};

class * * public Shape

{

public:
** ** * *** ** Your code: * * *** * * ** * **
** *** * *** * * * ** *
***** * * * * * * ******* area;
*** * ******* ** * * = (width * * ** *
* *** *** * * * area;
** *** * ** * * *

};

int * ***

{
*** ** * * * ** ** Rect;
** * * ** * ** * ***
*** ** * ** * w,h;
* *** *** * *** ** * **** *
****** * * ** ** *
*** ***** * ** **** * * ** *
*** ** * * * * * * * **** ***** **
* *** * * ** * * * **** * *
** *** * ** *** **
*** ** * * * ** * * * ** * * ** * * **** * ** ** * * * * ****** * endl;
* * * *** * * * 0;

}
answered by (126 points)
0 like 0 dislike
Hidden content!
#include * * * **



using ***** std;



class Shape

{
** **
* ** * ** * * *** width, height;

public:
** ** * * ** ** * * * set_data (float a, float b)
* ** * **** * *
* ***** * * * * ** * *** * * * * * *** * * *** = a;
** ** *** * * *** * * *** ** ** **** ** = b;
* **** *** * *

};



class **** * public Shape

{

public:
* * ** * * ** * ** ** area ()
***** *** * **** ** * * ***
* ** * * *** **** ***** ** * *** * **** * * *** * (width * height);
*** * * **** * * *

};



class * * public Shape

{
* *
*** ** * * * * * ** ***** area ()
** * * * ** * *
** *** *** * ** ** * ** * ** ***** ** (width * height / 2);
* * ********* *** ** * * *****

};



int main (){
* *** * ************* *
**** * ********* * ** *** * rect;
** * * ** ** **** ****** ** tri;
** * ** * *** * ****** * * (5,3);
*** * ** * * * * ***** ****** (2,5);
* * * * *** ****** * ** * ** * ** ** *** * * **** ** *** * * * * * ** * ** * endl;
* * * **** * * **** *** 0;

}
answered by (-298 points)
0 like 0 dislike
Hidden content!
#include ** ** *** *

using namespace std;

class Shape

{

public:
** * * * *** ** *** int setWidth(int n1){
* **** * * ***** * ****
* * * ** *
* ** ** *** ** *** * ** *** ** int setHeight(int n2){
** *** ** * *** ***** * * **
* * * *** **
* * * * * getWidth(){
* * *** * * *** **** *** width;
*** * *** ** **
** * * * * *** * ** getHeight(){
* ** * ******* * * * * * height;
** * ** * * **

protected:
* ** ** * *** ** * width;
** ******** * height;

};



class Rectangle: public Shape

{

public:
*** *** *** * getArea(){
******** * * * * ********** * ** ** *** * * *
* **** ***** * *

};

class Triangle: public Shape

{

public:
** ** * ** * * *** getArea(){
* *** * ** * ** ***** * * ** **** *** * ** * ***
**** * ** **

};

int main(void)

{
* * *** ***** ** Rect;
* * ** * **** * **** ** * *** * **
**** * ** * *** w,h;
*** * ****** ******* * * * ** ** ** *
**** *** * ** *** * *
* * * * ***** ** *****
* * * * * * * * ** * * * * * *
* ***** *** * * ** **
** * * * **** ** * **
* * * * * ** ***** * * * ** * * * * ** * * *** ** * * ** * *** ** ** ** endl;

* * * * * *** **** 0;

}
answered by (-249 points)
0 like 0 dislike
Hidden content!
#include **** * ***

using namespace std;

// Base class

class Shape

{

public:
* **** * * * * * Your code: pure virtual function ***** * *** *
**** * * * ** * * * *** and *** w) and ** * * h) *** here
* * * * ** * ** ** * ** x);
* * * * * * * * * *** * * y);
* * *
* *** * ** * *** * ** width;
* * * * * ** height;

};

// Derived classes

class **** public Shape

{

public:
* * * ****** * *** Your code: * ** **** ** ** **
***** ***** * * * ** *
*** * ** * * * * **** * ** **** * * ***** ** *
* * * ** * * * *

};

class Triangle: public Shape

{

public:
** * ** ***** ** ** * Your code: *** *** ******* * * **** *
* * ** *** * * **
** *** ** ******* * * * * * ***** * ** ** ******
* * ** ** ** * **** *

};
**

int *** * * * * x){
*** *** * * * * *** * * = x;

}

int * ** ** y){
** ** * * *** ** * * *** ** = y;

}



int ** *

{
** ** ** * ** ** Rect;
* * ** * * * *** ***** * *
* * * * * * * w,h;
* * * * * *** ** **** **** * **** ** ** **
** * ******* ** * * *
* ** ** ** *** ** * * * ***
* * **** * * * * * * ** * * * ** * ***
*** ** * * *** *** * *******
* * ** ** **** ** ** *** *
********* * * ** * ** * * * ** * ** *** * *** * **** ** *** * * * ** * *** ** * * endl;

* * ***** ** * 0;

}
answered by (-136 points)
0 like 0 dislike
Hidden content!
using *** std;

// Base class

class Shape

{

public:
* *** **** ** * Your code: pure virtual function * ** * * *
* * ** *** * **** * ** ** and * w) and * * * * h) functions here
* ** * *** * * *** ** * * x);
** * *** * * ** * **** * **** ** y);
* ** *
* ** * ** ** *** width;
* * ** * ** height;

};

// Derived classes

class ** * public Shape

{

public:
* ****** ** ***** Your code: ** ** ***** * * * getArea()
****** * * ***** * * * *
***** * * * * * * *** * ** * * *** *** *
* *** * ** * * *** *

};

class ** *** public Shape

{

public:
*** * * ** Your code: ** **** * *** * ***
* * ** * **** ** *
* * * * * * ** * ******* *** * *** ***
* ** ** * * *

};
** **** *

int * ***** * * * x){
* *** * * ** ** * = x;

}

int * * * **** y){
** ** *** * * * * * = y;

}



int * *

{
* * * * * ** * * Rect;
** ***** * ** * ** * * *
* ** *** *** ** w,h;
*** **** ** * * * * * * * * ***
* ***** * ** ** * * *
**** ** * *** ** **** * **** *
* * * **** * *** ** ******* ***** **
* ***** * *** * * * * *
* * ***** *** * ** ** *****
* ** ** * ***** **** ** ** * * ** ** * * ** ******* **** * * * * ** * * endl;

* *** ** ** ** **** 0;

}
answered by (-136 points)
0 like 0 dislike
Hidden content!
#include **** ** ** *

using * ** std;

// Base class

class Shape

{

public:
**** * ** * * * Your code: pure virtual function * ** ** * * ** * *
** * **** *** **** ******* and ** ** w) and * **** h) * * here
* * * * * *** * * w){width = w;}
* ** ** *** ** * * * * = h;}
** *
* *** * ** * * width;
* * ** ** * * **** ** height;

};

// Derived classes

class *** *** public Shape

{

public:
** **** * * ** * * Your code: *** ****** * * * ** **
* ** * *** * ***** area;
* * * * * *** * ** * = ** **
* * * *** *** **** * * ** area;
* **** * *****

};

class * * public Shape

{

public:
* **** * *** Your code: *** ** *** ** * * *** *
* * * ** * ** ***
** * ***** *** * * *** ** * area;
* ** * ** * * *** * * * * = (width * *
** * * ** *** ** *** * *** * area;
* * ** * * *

};

int ****

{
** * ** Rect;
*** * *** *** ****** * ** *
** * ** * * * ** w,h;
* * * *** **** *** * * ** * * * **
** * * * * * * * * *
** * ***** * * * *
* * ** * * *** * * * * *** *** **
* **** *** ** **** * ****
* ***** ** *** ** * * *
* ** * ****** ** *** ** * * *** *** * * * *** **** ** * * ** * ******* * endl;
** *** * ** ** * * 0;

}
answered by (-189 points)
0 like 0 dislike
Hidden content!
#include ** ** ** ***

using namespace std;

// Base class

class Shape

{

public:
* * * * ** * *** ** Your code: pure virtual function providing interface framework.




** * ** * * *
* ** ** * * *** * ** ** **** ** * ** **
* * *** ********* * **** * * * *
* ** *** *
***** *** *** *** ** in){
** ** * * * *** * ******* **** * ** * * **
***** ******
** * * * ** ** ** ** ***** in){
** * ** ***** * * *** *** * *** * ** ***
* * * * * * **
**** * * **** ***** constructor and *** * * w) and **** * h) functions here
***
** * ** * ** * ***** *** width;
** * * *** * * * ** * height;

};

// Derived classes

class Rectangle: public Shape

{

public:
*** * * * ** ** * * Your code: * * ** * **** * getArea()
* * *** ** ** * ***
** *** * * ** * * *** ** * * *** * *** ** ***** *
* * * *



};

class Triangle: public Shape

{

public:
* * * **** Your code: * *** * ** ** ** ** getArea()
** * ** * *** **** ****
** * * * * **** ** *** ** ** *** * ** * ** *
** ** ** * ** * ***



};

int main(void)

{
**** **** ** * * * ** Rect;
*** * ** *** *** ** * * ** **
* ** **** **** ** w,h;
* ****** ** *** * * * * *** **** *
**** * * * * ** ** *
* ** * * ** * **** * ***
** ** * ** ****** *** ** * **
* ** ******* ** * ** * **
* * **** * *** * ** *
*** * * * * * * * * * ** * * ** * **** **** *** **** ** * ** * *** ** * * **** ** ** endl;
* * ** * ** * * 0;

}
answered by (-368 points)
Get it on Google Play Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:173.245.54.25
©2016-2019

Related questions

0 like 0 dislike
15 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
Available when: Unlimited - Due to: Unlimited
| 38 views
0 like 0 dislike
27 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
Available when: Unlimited - Due to: Unlimited
| 74 views
0 like 0 dislike
1 answer
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
Available when: Unlimited - Due to: Unlimited
| 24 views
8,559 questions
68,453 answers
43,098 comments
1,650 users